With the demanding scenario of communication and optical computing technology the trinary and quadruple valued logic systems are the most important ones in the many valued logic system. Different techniques are being proposed day-by-day to implement the multi-valued logics (MVL). In our previous papers we have proposed the modified trinary number (MTN) systems using savart plates and spatial light modulators (SLM). In this paper we have communicated the quadruple valued logic system using di-bit concept and their implementations to meet up the tremendous needs of speeds by exploiting the advantages of savart plates and spatial light modulators (SLM) in the optical tree architecture (OTA). © Springer Science+Business Media LLC 2012.